MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Open System Solutions Limited
Unique prefixes: 3
Block Size: 12285 (12.28 k)
First registration: 21 February 2011
Last updated: 24 October 2018
Types
IAB: Individual Address Blocks. Number of address 2^24 (~16 Million)
MA-S: Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)
| MAC Prefix | Type | Registration Date |
|---|---|---|
| 00:50:C2:81:1 | IAB | 2011-02-21 |
| 70:B3:D5:44:B | MA-S | 2014-11-04 |
| 70:B3:D5:FA:B | MA-S | 2018-10-24 |